All Questions ⁺⁰237748 Questions

-1

812

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+152

Triangles help plz

Find the area of the trapezoid D U C K below

BIGChungus Oct 30, 2019

0

908

2

Help please

If a>0 and b>0, a new operation is defined as follows:For example,For some values of x and y, the value of is equal to . How many possible ordered pairs of positive integers $x$ and $y$ are there for which this is true?

Guest Oct 30, 2019

0

832

1

HELP?

If , express as a common fraction.

Guest Oct 30, 2019

0

713

1

Help please thx

If , then find the value of .

Guest Oct 30, 2019

0

483

1

help

Find the total number of terms when is expanded.

Guest Oct 30, 2019

0

614

3

help

Dimitri places the maximum possible number of Rooks on a 8 x 8 chessboard in such a way that there's no two Rooks that attack each other. In how many ways can he do that?

Guest Oct 30, 2019

0

744

2

help

Find the quotient and remainder when x^2 + 2x + 10 is divided by x - 1.

Guest Oct 30, 2019

0

508

1

help

There exist positive integers n and k such that
32 * 6C6 + 31 * 7C6 + 30 * 8C6 + . . . + 3 * 35C6 + 2 * 36C6 + 37C6 = nCk
Enter the ordered pair (n, k).

Guest Oct 30, 2019

0

685

1

I need help solving these problems pleaes and thank you. I also need step by step (show your work). Correct answers only please!!

I need help solving these problems pleaes and thank you. I also need step by step (show your work). Correct answers only please!! These are two separate questions sorry for or even if there was any confusion. Thanks.
Completing the square: x2 read more ..

Guest Oct 30, 2019

Oct 29, 2019

+1

687

1

Help please

For a certain value of k, the system
x + y + 3z = 10,
-4x + 2y + 5z = 7,
kx + z &= 3
has no solutions. What is this value of k?

Guest Oct 29, 2019

-1

2

4494

1

+45

PHYSICS

A flatbed truck is carrying a heavy crate. The coefficient of static friction between the crate and the bed of the truck is (0.75). What is the maximum rate at which the driver can decelerate and still avoid having the crate slide against the cab of the read more ..

alrawashdeh04 Oct 29, 2019

0

786

1

help

Jeff rolls a fair regular octahedral die marked with the numbers 1 through 8. Then Amelie rolls a fair six-sided die. What is the probability that the product of the two rolls is a multiple of 3?

Guest Oct 29, 2019

0

853

1

help

Let denote the sum of all positive divisors of n, excluding n itrself. For example, <4> = 1 + 2 = 3. What is <<<6>>>?

Guest Oct 29, 2019

0

466

0

help

The function f has the property that for each real number x, f(x) + f(x - 1) = x^2. If f(19) = 94, what is the remainder when f(94) is divided by 1000?

Guest Oct 29, 2019

0

1530

1

Physics 2D

A ball is thrown horizontally from the top of a building 36.7 m high. The ball strikes the ground at a point 91.9 m from the base of the building. Find the y component of its velocity just before it strikes the ground.

ElectricPavlov ●

Guest Oct 29, 2019

0

590

1

help

If $a + b = 7$ and $a^3 + b^3 = 42$, then find $1/a + 1/b$.

Guest Oct 29, 2019

0

474

1

Help ASAP

Suppose that and are functions on such that the range of is , and the range of is . The range of is . What is the largest possible value of ?

Guest Oct 29, 2019

0

592

2

help

What is the smallest positive integer with exactly thirty positive divisors?

Guest Oct 29, 2019

0

663

2

help

solve z^2 = 21 - 20i.

Guest Oct 29, 2019

-1

787

2

+15

bbbbb

bbbbb read more ..

Soapen Oct 29, 2019

0

993

0

+134

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off-topic

killersteve27 Oct 29, 2019

0

767

1

Help!

Let
Find the constant so that for all

I found that a=x+1 (im not sure if that's right but the question wants a constant for a. Help!
read more ..

Guest Oct 29, 2019

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